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CircuitsRadio, a resource for engineers, hobbyists, inventors & consultants, is a collection of 12,000+ electronic circuits or electronic schematics cross-referenced into 500+ categories to find quick solutions for electronic design problems. Bad links are removed and new circuits or schematics are added frequently.
This site contains lots of FREE electronic circuits (schematics) & do-it-yourself (DIY) circuit diagrams for hobbyists, students, professionals etc. covering a wide range of categories in electronics like audio, music,home/garden related,computer hardware,radio,robotics etc to name a few. There are also links to sites that offer hobby electronic kits and other electronics hobby related stuff. Use the menu on the left to browse different circuit categories.
Electronic Circuits
Electronic schematics diagrams, service manuals, articles... Catalogue of Electronic Circuits:
 Antique Antique (1)
 Audio Audio (643)
 Auto Auto (174)
 Auto Audio Auto Audio (116)
 Camcorders Camcorders (22)
 Cellular communication Cellular communication (25)
 Computer Computer (232)
 Data processing Data processing (41)
 Digital/Microcontrollers Digital/Microcontrollers (384)
 Domestic Domestic (213)
 Filters Filters (24)
 Games/Entertainments Games/Entertainments (57)
 High Voltage High Voltage (18)
 Light/Laser/IR Light/Laser/IR (270)
 Medicine Medicine (22)
 Meters Meters (290)
 Miscellaneous Miscellaneous (305)
 Motor controls Motor controls (102)
 Music Music (225)
 Networks Networks (16)
 Oscillators Oscillators (142)
 PDA interface and schematic PDA interface and schematic (21)
 Power Suply Power Suply (527)
 Preamplifiers Preamplifiers (33)
 Radio Radio (387)
 RC Modeling RC Modeling (90)
 Repair Repair (423)
 Security Security (112)
 Solar energy Solar energy (33)
 Switching Switching (13)
 Telephone Telephone (435)
 Transmitters Transmitters (55)
 TV/Monitors TV/Monitors (789)
 Video Video (378)

OVER 10.000 SCHEMATICS & DIAGRAMS (Catalogue of Electronic Circuits)
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Elecronic components news
ATI to Miss Rev Target After AMD Acquisition Announcement 18:03[07/09/2006] - Reads: 945
ATI to Miss Rev Target After AMD Acquisition Announcement  

ATI Technologies Inc. will not hit its fiscal Q4 revenue targets, thanks to pullback from Intel, ... read more


Tomorrow's Platform: Multicore, SoCs and IP 12:03[07/09/2006] - Reads: 902
Tomorrow's Platform: Multicore, SoCs and IP  

After a long career of providing more computing through higher frequency and greater density, the... read more


Semico Forecasts Q1 Downturn 21:58[06/09/2006] - Reads: 971
Semico Forecasts Q1 Downturn  

The semiconductor industry is headed for a downturn as 2007 begins, with slowing growth and falli... read more


ASML Boosts Q3 Outlook by 50% 18:51[06/09/2006] - Reads: 863
ASML Boosts Q3 Outlook by 50%  

Lithography systems manufacturer ASML Holding NV today ramped up its outlook for Q3, now expectin... read more


NXP Offers Nexperia Reference Designs for Hybrid TV 12:03[06/09/2006] - Reads: 950
NXP Offers Nexperia Reference Designs for Hybrid TV  

With an eye to helping OEMs bring hybrid television (analog and digital) products to market faste... read more


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Antique Audio Auto Auto Audio Camcorders Cellular communication Computer Data processing Digital/Microcontrollers Domestic Filters Games/Entertainments High Voltage Light/Laser/IR Medicine Meters Miscellaneous Motor controls Music Networks Oscillators PDA interface and schematic Power Suply Preamplifiers Radio RC Modeling Repair Security Solar energy Switching Telephone Transmitters TV/Monitors Video

16 October 2008 (New circuits):

Ramp generator (separate + Motorcycle alarm EMF field probe Citroen Magneti Marelli in Tank Overflow Preventer Videorecorder power supply RDS Encoder Aladin interface Infa-Red Remote Control Amplifier Audio Note 300B Automatic Room Power Contr Videorecorder power supply Videorecorder power supply Rush Converter for the Car TV power supply Goldstar C Alinco radiostation DJ-580 Ringer and Indicator for a EEPROM, SEEPROM for tv mon

15 October 2008 (New circuits):

Digital noise generator (P Record and play fast 1-bit Interfacing 16x2 character Microwave Oven Transformer Kenwood radiostation TS-87 Vox Top Boost Preamp/ Tube Videorecorder power supply TV power supply schematics IRPR/CENTRONICS Convertor Op Amp Power supply- Dual TV power supply Funai MS20 Sony_SPP-114 Cordless Phon Five projects for April Fo Connecting AT90S2313 with Analog MIDI synthesizer Simple 6-Digit 40MHz Frequ Power supply TV Grundig CU Power supply TV Goldstar C

14 October 2008 (New circuits):

Service manual printer SCR TV Sanyo_21BN1 Videorecorder power supply Interfacing ultrasonic ran Quadraphonic Amplifier Cordless phone schematics Videorecorder schematic di IC Controlled Emergency Li Homebuilt video digitizer TV schematic diagram Sony Fridge door alarm Sony_SPP-SS965 Cordless Ph High Quality Intercom RGB oo Monochrome converte TV power supply schematics White LED circuits Temperature Controlled NIC Sound Card Interfacing for

13 October 2008 (New circuits):

GPS LCD Display Project Digital to analogue conver Variable Voltage and Curre Spring reverb unit AD537 8 Note Tune Player TV schematics SONY RM827B FM Oscillator Stepper Motor Controller TV schematic diagram Samsu Embedded system to send e- Crystal oscillator Sound finding cricket Spiffy PIC Stuff (RF) remote control encode Power supply unit Scheme X Electronic coin tosser Simple RS-232 serial port

12 October 2008 (New circuits):

Monitor DAEWOO 1427X AD526 Technics RS-AZ7 Schematics TV schematic diagram Panas AUTOMATIC TEMPERATURE CONT TV supply schematics DAEWO OFF-LINE TELEPHONE TESTER Relay timer switch Dongle -serial port (12C50 TV schematic diagram Panas Monitor Panasonic s-50 Videorecorder power supply TV schematic diagram Sony Low Frequency (article RF Cordless phone schematics TV power supply schematics Strobe Light TV schematic diagram Hitac

09/2008   08/2008   07/2008   06/2008   05/2008   04/2008   03/2008   02/2008   01/2008   12/2007   11/2007   10/2007   09/2007


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